A 3rd/4th-class prostitute. Usually works on his/her own, without a pimp or brothel, thus allowing some form of freedom.

Still, since prostitution is illegal in many countries, streetwalkers often get into trouble with the law. Streetwalkers become easy prey for rapists, murderers, and other criminals (even corrupt police officers) since they try to keep their liaisons discreet and, being criminals themselves, are not looked out for by police.

Despite romantic interpretations like the film "Pretty Woman," the average streetwalker is quite run-down and unattractive, from being at the bottom of the social ladder.